client/io.github.octaviusframework.client.transaction/TransactionValue/FromStep

FromStep

data class FromStep<out T>(val handle: StepHandle<T>) : TransactionValue<T>

An earlier step's result, as its terminal produced it: a Row after fetchRowStrict, a Senator after fetchObjectStrict<Senator>. map takes a part of it.

Constructors

FromStep

constructor(handle: StepHandle<T>)

Properties

handle

val handle: StepHandle<T>

Functions

map

fun <IN, OUT> TransactionValue<IN>.map(transformation: (IN) -> OUT): TransactionValue<OUT>

Applies transformation to this value once it resolves, so a row becomes the column the next step needs without a step of its own:

spread

fun TransactionValue<Map<String, Any?>>.spread(): SpreadParameters

Spreads this map into parameters under its own keys. The name it was filed under is only a placeholder and is not bound.